捷联惯性航姿ARINC429接口系统的设计与实现  

Design and Implementation of ARINC429 Interface System of Strapdown Inertial Attitude and Heading Reference System

作　　者：郑智明[1] 曾庆化[1] 祝燕华[1] 刘建业[1] 

机构地区：[1]南京航空航天大学自动化学院导航研究中心,南京210016

出　　处：《导航》2007年第4期10-14,共5页

基　　金：航空科学基金（04D52030）

摘　　要：分析了捷联惯性航姿系统接口系统设计与实现的思路，在保证系统精度和实时性要求的前提下，实现了实际接口系统中4组ARINC429板卡间的组网数字通讯。针对传统数据传输方式的不足，提出了一种环形缓冲区的数据通讯软件设计方法，在此基础上引入静态局部变量，取得了很好的效果。测试结果表明，该接口系统设计合理、实时性好、数据传输精度高，完全满足了捷联惯性航姿系统的技术性能要求。The design and implementation ideas for the interface system of the strapdown inertial attitude and heading reference system （AHRS） are analyzed. In the guarantee of system precision and the real-time request, the network communication based on four groups of the ARINC429 board is realized. In view of the insufficiency of traditional data transmission, a modular approach named as ring buffer data communication method is presented, and static local variables based on this is introduced. These have achieved good results. Testing result indicates that this interface system works on real time, and has required data precision, which is able to satisfy the demand of AHRS interface system completely.

关 键 词：捷联惯性航姿系统 ARINC429接口系统 组网数字通讯 环形缓冲区数据通讯  静态局部变量 

分 类 号：TN96[电子电信—信号与信息处理]